diff --git a/gorush/server_unix.go b/gorush/server_unix.go
index 2a855d9..b826c2c 100644
--- a/gorush/server_unix.go
+++ b/gorush/server_unix.go
@@ -1,4 +1,4 @@
-// +build darwin dragonfly freebsd linux nacl netbsd openbsd solaris
+// +build !windows
 
 package gorush
 
diff --git a/gorush/server_windows.go b/gorush/server_windows.go
index 00245cd..bcb9299 100644
--- a/gorush/server_windows.go
+++ b/gorush/server_windows.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package gorush
 
 import (